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Bird - The RF Experts
Coaxwitch Series
Coaxwitch, RF Selector Switches
Coaxwitch Series

Multi-Position, RF Selector Switches


Bird®, 50-Ohm Coaxial Selector Switches employ a unique, rugged and reliable design which permits positive contact, low insertion VSWR and negligible cross talk between channels. The switching mechanism is 4 1/2" of RG-87/U Teflon cable which is pulled away from the mating Male N connectors and rotated to the desired switch position.

The switches have a valuable advantage that they cannot be operated accidentally, but must be operated by intentional sequential movement. The knob must be grasped, pulled out, rotated and pushed in to make contact.

Model Selections
Model Positions Coaxial Circuits
718 8 1
7181 10 1
72-2 2 2
74 6 1
7422 2 1
7431 4 1
7441 3 1
Coaxwitch, RF Selector Switches
Coaxwitch Series
product specifications:
Item No
Coaxwitch Series
Item Name
50 Ohm, RF Selector Switches
Frequency Range
DC to 10 GHz
VSWR
100 MHz: Negligible
1 GHz: 1.06 (max)
4 GHz: 1.30 (max)
Insertion Loss
100 MHz: 0.02 dB
1 GHz: 0.09 dB
4 GHz: 0.22 dB
RF Power
Max. Rating @ 65°C
100 MHz: 850W
1 GHz: 200W
4 GHz: 75W
RF Voltage
500V (max)
Attenuation
For unused channel - 75 dB (cross talk)
Temperature Range
-60 to +65 °C (-76 to +149 °F)
Weight
2-1/2 lbs. (1.1 kg)